Thank you for your post.
The Status Area Language will not display a language until Instant Web Publishing is turned on.
I don't have a Mac OS X 10.4.x machine; only 10.5.6 machine, so I cannot duplicate your problem exactly.
Change the port to 591. This is the port registered and reserved for FileMaker Pro. See if you are able to now turn on Instant Web Publishing.
If you are still crashing, shut down your machine and restart. Do not open any other applications (I do not want any possible conflict). Then, open a file in FileMaker Pro Advanced 10, and try to turn on Instant Web Publishing.
If you are still crashing, then remove the preference file for FileMaker Pro. They can be found at:
Home -> Library -> Preferences -> com.filemaker.pro.advanced.plist
When FileMaker Pro Advanced launches, it looks for this Preference file and reads it. If none is found, then a new one is created. Once removed, try launching FileMaker Pro again and turn on Instant Web Publishing.
If you are still encountering problems, let me know.
Hi! I'm having this same problem. I tried all of the steps you suggested, but to no avail. Any other advice?